Gravity Analog MQ-7 Gas Sensor Module – Carbon Monoxide

Environment Sensors are awesome tiny modules that allow Makers to see more than our eyes ever could. The Gravity MQ-7 Gas Sensor Module detects carbon monoxide levels with a sensitivity range of 20 to 2000 parts per million. Carbon monoxide is a harmless natural gas that we actually breath out into the environment where the trees can absorb it for themselves. However, we all instinctively know that breathing clean air is essential to healthy happy lifestyles. Highly concentrated levels of carbon monoxide can indicate too little oxygen within closed stuffy areas like laboratories, workshops, or underground rooms. an undetected build-up of dangerous gases in these types of environments can be extremely dangerous. Fortunately, Gas Sensors like these are designed to rapidly detect high concentrations and act as a warning to protect the inhabitants of the room. The Gravity MQ-7 module also offers a few extra features in addition to the actual sensor, such as a sensitivity adjustment potentiometer, that all enhance the functionality and make the sensor easier to work with and connect to.

The Gravity MQ-7 Gas Sensor Module features an easy Gravity interface that allows for analog and digital connections. Using the analog Gravity interface, the MQ-7 CO Gas Sensor is best matched with the Arduino IO expansion shield to easily integrate with your Arduino project. These features, in conjunction with the long lifespan of materials used to build the Gas Sensor, make it an excellent investment for anyone who might be concerned with the saturation levels of dangerous gases within a home, workplace or even factory environment. Although there are many different gases that can be toxic in high concentrations, carbon monoxide is arguably one of the most dangerous, since there are many different machines and engines that produce this gas. In fact, even just sitting in heavy traffic for a few hours with your windows open can cause noticeable harm to your health, which demonstrates just how important these Environmental Sensors can be.

Typical Applications for the Gravity MQ-7 Gas Sensor Module:

The MQ-7 Carbon Monoxide Sensor Module is an excellent investment for any environment in which carbon monoxide may build up to toxic levels. Environments like these include workshops, laboratories, underground rooms or even garages where vehicles are parked or stored. They can also be used for experimentation and documentation purposes as well, to measure how much carbon monoxide specific compounds or reactions are producing, and can be output via the gravity analog interface to Arduino Boards or similar types of development platforms. This means you don’t even have to be present to monitor CO levels, and can simply log the data for later use while you continue with other work or experimentation.

Additional Resources:

• If you’re unsure where to start, we recommend taking a look at the original DFRobot Gravity MQ-7 CO Gas Sensor Wiki Page, where you can find a good range of resources, including schematics and sample codes.

As self-proclaimed “Robo-holics”, DFRobot is a company comprised of over 100 staff members, of which 30% are engineers who love to build robots. It was started in 2008 with the goal of embracing and promoting open-source hardware, with a core focus on Arduino, Raspberry Pi and their very own LattePanda development boards. Since then, DFRobot have manufactured over 1300 unique modules, sensors and components that all work together and complement each other, allowing users like us to enjoy a full spectrum of cutting edge robotics and electronics without having to pay premium prices.

With the primary goal of developing and manufacturing great quality products, while making them accessible to as many people as possible, DFRobot are rapidly becoming one of the most common-place brands in the world of open-source robotics and electronics. With more than 1300 products developed in-house, and an impressive range of different categories and specialisations, there are few brands in the world who can compete in terms of quality, accessibility and genuine innovation.